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Cubic metre

From Wikipedia, the free encyclopedia
SI derived unit of volume
cubic metre
All eight cubes together form one cubic metre ofconcrete (representing the world annual productionper capita) (on the left).
General information
Unit systemSI
Unit ofvolume
Symbolm3

Thecubic metre (inCommonwealth English and international spelling as used by theInternational Bureau of Weights and Measures) orcubic meter (inAmerican English) is the unit ofvolume in theInternational System of Units (SI).[1] Its symbol ism3.[1] It is the volume of acube with edges onemetre in length. An alternative name, which allowed a different usage withmetric prefixes, was thestère, still sometimes used fordry measure (for instance, in reference towood). Another alternative name, no longer widely used, was thekilolitre.

Conversions

[edit]
Some SI units of volume to scale and approximate corresponding mass of water
Main article:Unit conversion
1 cubic metre=1000litres (exactly)[2][3]
≈ 35.3146667cubic feet
≈ 1.3079506cubic yards
≈ 6.2898108oil barrels
≈ 219.96925imperialgallons
≈ 264.17205US fluid gallons

A cubic metre of pure water at the temperature of maximum density (3.983 °C) and standardatmospheric pressure (101.325 kPa) has amass of1000 kg, or onetonne, which makes itsmaximumdensity at 101.325 kPa 1 Mg/m3. At 0 °C, the freezing point of water, a cubic metre of water has slightly less mass, 999.85 kilograms.[4]

The "cubic metre" symbol is encoded byUnicode at code pointU+33A5 ㎥SQUARE M CUBED.[5]

Multiples and submultiples

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Main articles:Metric prefix andOrders of magnitude (volume)

Multiples

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Cubic decametre
the volume of a cube of side length one decametre (10 m)
equal to amegalitre
1 dam3 =1000 m3 = 1 ML
Cubic hectometre
the volume of a cube of side length one hectometre (100 m)
equal to agigalitre
in civil engineering abbreviated MCM for million cubic metres
1 hm3 =1000000 m3 = 1 GL
Cubic kilometre
the volume of a cube of side length one kilometre (1000 m)
equal to a teralitre
1 km3 =1000000000 m3 = 1 TL (810713.19acre-feet; 0.239913cubic miles)

Submultiples

[edit]
Cubic decimetre
the volume of a cube of side length one decimetre (0.1 m)
equal to a litre
1 dm3 = 0.001 m3 = 1 L
(also known as DCM (=Deci Cubic Meter) in Rubber compound processing)
Cubic centimetre[6]
the volume of a cube of side length one centimetre (0.01 m)
equal to a millilitre
1 cm3 =0.000001 m3 = 10−6 m3 = 1 mL
Cubic millimetre
the volume of a cube of side length one millimetre (0.001 m)
equal to a microlitre
1 mm3 =0.000000001 m3 = 10−9 m3 = 1 μL

See also

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References

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  1. ^abBureau International de Poids et Mesures. "Derived units expressed in terms of base unitsArchived 2012-07-16 at theWayback Machine". 2014. Accessed 7 August 2014.
  2. ^From 1901 to 1964 the litre was defined as the volume of one kilogram of purewater at 4 °C and 760millimetres of mercury pressure: during this time, a litre was about1.000028 dm3. In 1964 the original definition was reverted to.
  3. ^"BIPM – Table 6". Archived fromthe original on 2009-10-01. Retrieved2010-03-05.
  4. ^"Water Density, Specific Weight and Thermal Expansion Coefficients – Temperature and Pressure Dependence".The Engineering ToolBox. Retrieved2025-06-13.
  5. ^Unicode Consortium (2019)."The Unicode Standard 12.0 – CJK Compatibility ❰ Range: 3300—33FF ❱"(PDF).Unicode.org. RetrievedMay 24, 2019.
  6. ^The cubic centimetre is the base unit of volume of theCGS system of units. The colloquial abbreviations "cc" and "ccm" are not SI but are common in some contexts such as cooking,engine displacement and medicine.
Look upcubic metre in Wiktionary, the free dictionary.
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